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LEAN is the open source algorithmic trading engine powering QuantConnect. Founded in 2013 LEAN has been built by a global community of 80+ engineers and powers more than a dozen hedge funds today.

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Py
211
Lean CLI: can you push a locally created ObjectStore? 1 comment by Jared Broad,
Py
1.2k
Why is OnData() called if no data is available? 1 comment by Varad Kabade,
Py
4.2k
How to Generate Insights for Top 10 and Bottom 10 7 comments, last comment by Sheikh Pancham,
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170
How to find symbols for delisted securities 4 comments, last comment by Varad Kabade,
C#
235
"Invalid mount path" error using Lean via Docker Toolbox 10 comments, last comment by Corne Schriek,
Py
1k
Simple RSI trading strategy help. 2 comments, last comment by Christopher Phillips,
Py
1k
Using Equity Ask/Bid to determine Spread 2 comments, last comment by Christopher Phillips,
Py
1.1k
Filtering options by greeks: Delta is chosen correctly in the beginning of backtest but drifts over time 1 comment by Varad Kabade,
C#
370
Order-Log in Lean in VS-2019 4 comments, last comment by Ishant Jain,
Py
616
Limit subscribing to option strike prices. 1 comment by Derek Melchin,
Py
1k
Comparing pervious days close to current last price? 5 comments, last comment by Christopher Phillips,
Py
37.2k
USD, Minute The issue starts from May 25th, 2021; and continues until now Started by Manoj Agarwala,
Py
37.2k
USD, Minute The issue starts from May 25th, 2021; and continues until now Started by Manoj Agarwala,
Py
37.2k
USD, Minute The issue starts from May 25th, 2021; and continues until now Started by Manoj Agarwala,
Py
1.2k
Weird error popped up on live trade 3 comments, last comment by Joshua Hughes,
C#
1.3k
BRK.B, Minute The issue starts at the start of the data; and continues until now Started by Colton Sellers,
Py
1.1k
Running more than 1 backtest simultaneously 1 comment by Jared Broad,
Py
436
UVXY split data not updated, Minute The issue starts from May 1st, 2021 09:37 AM; and continues until Jun 14th, 2021 2 comments, last comment by Stephen Hyer,
Py
94.7k
Finite Impulse Response Digital Filter (Power Weighted Moving Average). 11 comments, last comment by Vladimir,
Py
1.2k
Removing History() call log messages or get number of history bars available without making the History() call 1 comment by Derek Melchin,
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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.

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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.

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